These boxes cnnnot he' used as renrirg-boxes for loosened 

 spCTvm-* I have iiic.de some experiments in this respect, but I succeeded 

 in hatching only c very little nunber of brood,. The movement, which 

 is one of the liinin conditions -for hatching of lobstor-spnrm, is not 

 sufficient in these boxes. Better results r,re obtained if the loosened 

 spr.T.TL is hatched in si.i!?>ller boxes which aj*e placed in a spot v;here 

 there are Viraves. But still the result will not be quite satisfactory. 



Therefore to procure the brood necessary for rearing there is 

 only one possibility, i.e., to keep the mother -lobster in special 

 boxes, where they hatch their spavm. The young ::iust tlien be trans- 

 ferred to the renring-boxes. 



The mother lobsters, which are kept to;.,ether in the hatching 

 boxes, ought to have sparna in cpproximr.tely the same stage of 

 dcvelcp'rient , so that the spavjn can be hatched siiaultancously* 



In each rearing-tox of the above mentioned dimensions, there is 

 place for about 8000. young, but there ought not to be any more, I 

 have already mentioned that also in these boxes only a very snail 

 percentage can be reared beyond the larval stages (in most cases 

 scarcely more than 5-7%). Those floating boxes v.rill therefore not 

 be o.f any practical imp-.rtance for rearing lobsters to the bottom 

 stage, Kowcjver, they might with advantage be used for v. "partial" 

 rearing; the larva is t>icn only kept for about a week or up to the 

 time vfhon it changes shell for the first tim.e, i.e., enters t?i.e 

 second sta.ge. Certainly, the instinct to hide is not developed vintil 

 it reaches the 4th, or better, the 5th stage. But the lobster swims 

 less in the' second stage; therefore some of the dangers vrhich threaten 

 the sivlmraing larvae are eliminrted, and consequently there is reason 

 to believe that a relarbively higher percenta;;e of the brood v;ill 

 reach the bottom stage if they are put out in the second stage instead 

 of immediately after the hatching. 



\le have now mentioned tiTo methods of rearing. Pi*oia an economical 

 viewpoint, none of these are quite satisfact jry, ... .Kovirever, I 

 have mentioned and described the last method in detail in spite of 

 the fact that this rearing in floatin^ boxes cannot produce a suffie-^ 

 iently high percentage of bottom-stagers; the reason is that this 

 method, because it is so simple and cheap, can be practiced hy any 

 fisherman or any other irrt crested person almost ever^^.vherQ on the 

 coast where. there is a protected bay a:id suf.'^icient salt water. Only 

 because this mt.thod is so simple and so cheap can I recommend it to 

 a certain degree, beside the method which I am now going to C escribe. 



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